Ah glad you got it figured out
Yes motion blur if unchecked will give you some weird black screen.
I have many servers without bots showing up in my list:
Those are just a few that have more then 24 players, and no bots at the moment.
[NANO]Red Orchestra. Over 18's Only! 85.236.100.136:7757
[PL] Festung-Breslau.pl & Red.Orchestra.pl & Aster.pl 212.76.32.54:7757
<RTR> RIGHT TO REBEL Infantry Only Server 63.209.36.203:7757
thedamnedpriests.de1>TDP< +costumsmaps 87.106.2.94:7757
[5.SS] Realism Server 209.160.64.227:7757
RO:Slowhands Ostfront 85.214.49.198:7757
FR-RO-MagicTT.com 213.251.181.20:7757
[Splat]Clan RO Server
www.splatclan.org.uk 85.236.100.42:7757
FKs #4 CA/Tank Maps w/ Custom Maps! - FKMOD.COM 212.187.208.143:7757
RedOrchestra.FR & ELIOTT NESS 62.4.70.164:7757
And yes, you will need a lot of practice with the rifles. It will take more time learning to master them then in any other pfs game imho. Don't let it put you down at the beginning. Most people have their toughest time in RO during the first 2-3 hours of gaming.
See you on the field.